HSC 2389

0.36 UTI

0.27

C_N

0.53

C_dens

0.75

C_C3

0.12

C_lit

1.0

C_dup

N_m (P>50%) 27

Core radius and density 1.2 [pc], 2.6 [pc^-2]

C3 classification AB

C_N 0.27 Poorly populated
C_dens 0.53 Moderately dense
C_C3 0.75 High quality
C_lit 0.12 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 2389 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a large distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Very distant Moderate extinction Massive Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.66 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.66 (50th percentile).

Data

🔍 Search references for HSC 2389 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	164.379	-59.733	0.166	-6.205	2.991	25.553
Hu & Soubiran	2025	164.382	-59.722	–	–	–	–
Hunt & Reffert	2024	164.379	-59.727	0.163	-6.216	2.987	25.515
Cavallo et al.	2024	164.382	-59.722	0.165	–	–	–
Hunt & Reffert	2023	164.379	-59.727	0.163	-6.216	2.987	25.515

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	B_frac	BSS
UCC	99999–	5.61	2.82	1.75	1479	-0.330	1389	–	–
Hu & Soubiran	2025	–	–	–	–	-0.200⁽⁵⁾	–	–	–
Hunt & Reffert	2024	5.61	2.82	1.75	1480	–	1389⁽¹⁾	–	–
Cavallo et al.	2024	8.20	2.93	–	759	-0.460	–	–	–
Hunt & Reffert	2023	5.61	2.82	1.75	1479	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3035	100.0	164.39	-59.74	0.15	-6.22	2.95	14.05	0.28

💡 Note: The % column shows the percentage of members that HSC 2389 shares with each listed object.

Visualization

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